ZCash mining versus other coins

So I’m a pretty novice miner and have been primarily doing ETH mining
since I started. When the difficulty started increasing I have been
searching around for alternatives to mine to keep up an revenue stream

My rig is 6x1070s ( various models can get them if it’s important)

From reading online I’ve been hearing that for full nvidia rigs that
zcash is more profitable so I started looking into it. I was trialing
out a few settings to see what was the most profitable overclocking and
I’m not really enjoying what I’m seeing.

For starters I’m using Ethereum as my baseline , my reason is even if
it’s not the most profitable it’s very liquid and it’s what I was
mining before

Current Eth calculations

Power(including rig) : 790

Hash Rate : 186

Estimated profit per month: €200 was acttauly €226 when I started typing this last night

So I started off tweaking trying to get the higher Sol/w ratio I
could get ( would usually be around 4.0) but the profits just aren’t
adding up.

For reference I was doing Core clock ~2000Mhz and Memory Clock
4100MHz. I found if i pushed the Core clock higher the stability went to
crap.

For example:

No under-volting I could get 460-470 per card but the power consumption was crazy high

Estimated profit per month: €222 ( can only have 2 links in a post ) | fyi price of this last night was €184

Is there something I’m doing wrong ? From what I’ve read online the
1070 seems to peak around 470 Sol , if that’s true then I’d need to pull
2750 Sol with a power draw of 750W. But that’s only to equal the
already not-so-great-to-mine ETH ( last nights price).

If there’s any advice or information you could give me to help me I’d very much appreciate it!
For reference my overlock Settings were around

core clock : 1700

memory clock: 4100

power limit: 50% to 75% ( essentially to limit the card at 120w maximum)